Controlling mechanism for liquid-dispensing apparatus.



-I.ii&R0WDER. CONTROLLING MECHAZIISM F01: LIQUID DISPENSING APPARATUS.

APPHCATION FILED NOV. 12. 1917- Patented Mar. 18,1919

2 SHEETS-SHEET l.

FIE-l1 R. CROWDER.

CONTROLLING MECHANISM FOR"UQU|D DlSPENSiNG APPARATUS.

APPLICATION F'ILED Nov, 22, :91].

1,297,801. Patented Mar. 18,1919.

2 SHEETSHEET 2.

was. A FIGQ.

91 WITNESSES I I m TOR Apparatus,

: UNITED STATES PATENT. oEFIoE.

RAYMOND snowman, or EDGEWOOD, PENNSYLVANIAIASSIGINOR TO GUARANTEE LIQUID MEASURE coM'PAn OF DELAWARE.

Y, 015 ROCHESTER PENNSYLVANIA, A CORPORATION Specification of Letters Patent.

Patented Mar. 18, 1919.

- v Applicationfiled November 12, 1917. Serial No. 201,668.

To all whom it may concern:

Be it known that I, RAYMOND CRownER, a citizen of the United States residing at Edgewood, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in Controlling Mechanism for Liquid-Dispensing of which the following is a specification.

My invention consists ment in controlling mechanism for liquid dispensing apparatus for delivering gasolene or other liquids in measured quantities from a measuring or secondary tank connected with a main reservoir or source of supply.

The improved controlling mechanism herein'described is adapted particularly for use-with apparatus similar to that described in the patent to George W. MacKenzie, J r., No. 1,255,763, Feb. 5, 1918, in which the liquid is caused to flow into a transparent 'measuring tank by the formation of a partial vacuum therein. A central vertically adjustable conduit extends upwardly into the secondary or measuring tank and is connected with a storage vessel or other source of supply. Suitable air exhausting means is provided and adapted to exhaust the air from the secondary tank when desired. The adjustable conduit may beset to predetermined positions by means of a handle secured thereon, and is located in the selected position by engaging a recess in one of a series of adjustable stop members within the pump standard.

The controlling mechanism described herein is then operated,which-caus es the air suction means to be set in'motion, thereby exhausting the air from the secondary tank and creating a partial vacuum.

. Theprincipal object of the present invention is to provide a controlling means which will be positive in action and will automatically shut off the atmospheric pressure from the measuring tank when the air exhausting means is set in motion.

A furtherobje ct is to provide such mechanism which will shut off atmospheric pressurefi'rom the tank and start the airexof an improvehausting mechanism by one operation, but whlch will delaythe starting of the air exhaustlng means until the atmospheric pressure has-been out off from the measuring tank.

1 Another object is to provide a mechanism which will insure at all times when the device is'not in motion that the circuit is broken which operates the air exhausting means.

Other and further objects are clearly set forth in the following specification and illustrated in the accompanying drawings in which:- i I Figure lis a side elevation of a complete apparatus having the casing partly broken away to show the invention;

Fig. 2 is a detail view of the pump sta ndard, partly broken away, showing the in- 1 closed mechanism on an enlarged scale,

Fig. 3 1s a cross sectlonal view of the punip standard on the line III, III of' F ig. 1;

Fig. 4 an enlarged detailview of the controlling mechanism detached from the apparatus Fig. 5 is a diagrammatic view of a circuit used in the operation of the 'device; and i Fig. 6 is a vertical sectional view through the measuring tank having the standard broken away.,

Referring inore particularly tothe draws ings, the letter A" designates a measuring tank which has a cylindrical glass body portion supported upon a hollow,casing or support '2. 4

A vertically adjustable conduit 3 extends upwardly from a storage vessel (not shown) Too.

1 1 or needle audio 7 1s Atits upper end, conduit 3 is provided wit-l; ezsiglasl zoningl1 suitably secured thereto, and )tccl to deflect the rising liquid downwardly. Conduit 3 is edjus sible to different levels to limit the. amount of liquid Within the tank living level. Liquid is drawn through 'the conduit 3 by creating a partial vacuum withiutenk A, and when surlicienl; liquid has entered SllOhzlLfi-Dk, atmospheric pressure is estabhsheitlnougli a valve 15 to ice descmoed, causing ell excess liquid above the terminal ()1 the conduit 3 to flow back through the same into the storage vessel from which it has oeen drevm. I

For the purpose of creating-.3 partial vacuum in the tank A, any suitable sir exlie'usting means may be employed as a pump 12 of any well lmownty ie and having a driving motor 13. 1

A suotiou'pipe leis wnnectedwith the pump 12 end with the upper pol'tiomof tank A, Communicating with the pipe ll is a vertical check valve 15 having a stem 15, adapted. to open, and close the pipe'le "to the atmosphere, I, i Y

The valve 115 is adopted to loe operated by lever-actuating rod 16 provided at its end I with a tubular ferrule 17 having longitudimil slots. A; valve stem 15 is adapted to be fitted within sucktubuler portion and to be held inposition by e cross pin 17 which extends through the slots. A coil spring 18 ig'mounted within such tubular portion, end provides a cushion beering for theend-oil the valve stem 1 5. The rod 16 is provided with a ball shaped member 19 below the tubular pox;- tiou, edapted to be gripped by the operator:

' to set the mcclienisrnin operation.

Rod 16 lies its lower end pivoted to one end of a crank arm lever 20-, pivotally mounted on support 21- mounted within casing 2. The-other end of the crank 21711, lever 20 is pivoted t a push rod 22 adapted toengege the positivebuttonflS of a push switch 24,01; well known type having two buttonsioro :eratm the same one for l y g makingdnd one for brea king a circuit,

The negetive buttozufif', is adapted to be engaged by a coilspring 2'6, at all times.

Thespring 28 is mounted tubular-member l1eving a closed e tension that the button 2.; open position except when the rod 22 is .;;';;ess d against the button 23.

, Each designates a measuring level and vvlaen' ,hzmdle '4" Y in piece 'Withinoue of the notches orrecesses 8 the upper termiimi'of conduit 3 will lie a corresponding measinto in detail.

a measuring vessel, 21 filling? (-36 is of such is always held 111 it will be readily seen that with the alcove construction one lifting of the rod 16 will first close the check valve 15, and then complete the civcuitthrough tile-switch 24 to the motel 13 operating the pump, 12, but the particular operation of therod if and its associeted'parts is of especial importance in a machine of the type involved.

The operetolywhen desiring to measure a,

quantity of liquid, will grasp the gripping member 19 and raise the rod 16 which will close check valve 15;

Said valve has spring 18am to continue to rock the crank arm 20 and force the push rod Q'Zegainst the button 23, until the circuit is closed through the switch. 24.

Upon being released, rod 16 will eutometically return to its lower or open position by gravitation and spring pressure, and the valve 15 will be opened to" create atmosllei'ic pressure simultaneously with the reaking of theeiizcuit by means of the ten" $1011 of the spring 26 upon button 25.

1i conduit 30 extends upwardly Within the ({flSlIlg 2, through the base 5 and is bent outwardly and upwardly around the tool: A

. and enters top to carry electric wiring 31 to the top for alight, if desired.

The general operat on of the device i's the "some as that'in the patent to George W.

MacKeuzie,-Jr. referred to in the forepart of this specification'mid need not be gone What I claim is 1' l. A liquid measuring apparatus provided with a measuring vessel, a suction pump having a conduit connected therewith, and

provided with a valve-controlled etmose plieric inlet, a motor to? the pump, and

means controlling the operation of the motorhaving a connection adapted to close the at y mospheric inlet prior ,to and in connection.

with the starting of the motor.

In a liquidmeasuring apparatus-having 2i measuring vessel, a suction pipe and pump connected therewith, and a pump, motor having a cii'cuit. controlling switch;- 2, normally open valve-controlled air inlet connection for the-suction pipe having a valve lever; lever mechanism connected with the controllingswitch, and a lifting;- rocl therefor provided with a gripping device and having a yielding connectionwith the air inlet valve. l

i 3. In illiquid measuring apps Fetus having i "nduit connected therewith, an electrically operated air exhaust pump connected with said measui'iug vessel, a'velve adapted to be normally positioned to permit the entrance of atmosias'asm.

4. The conibination with a liquid ineasuring and dispensing apparatus having a measuring vessel, a filling conduit connected therewith, an electrically operated air etc liaust um connected with said incasuriiw x1) vessel, and a valve adapted to be norn'ially o ened to permit the entrance of stores plieric pressure to said vessel, of a switch of the push button type adapted to make and break the electric circuit for opcrating; said pump, a lever mechanism adapted to ,close said valve and operate one of the push buttons of said switch to close the circuit to said pump, and means for normally holdin the other of said buttons in position to break the circuit to said pump.

The combination with a liquid measuring and dispensing apparatus having a measuring vessel, a filling conduit connected therewith, an electrically operated air ex haust pump connected with said measuring vessel, and a valve adapted to be normally opened to permitthe entrance of zit-mos pheri pressure to said vessel, of a switch of the push button type adapted to make and break the electric circuit for operating said pump, said switch being normally held in position to break the circuit, and a lover mechanism having a yielding connection with said valve and a positive connection with saicl.s\vitch. said mechanism bein adapted to close said valve a predetermineo operating; rod comic time lie-fore sa'eii said circuit.

G: The combination with l urinp; and dispensing appar measuring vessel, :1 filling conduit conneJv/ecl therewith, an electricali air exhaust mp connected u 'i. said measuring vessel, and a valve nclap ed to be normally opened to permit the entranc of atoms pheric to said v a switch of the push buttoi'i type aoa red to make e and break the electric circuit for operating; said pump, -flexible means cooperating Willi said switch for normally holding it in'opozi position, and a lever mechanism having a yielding sliding connection with valve and adapted to operate one of tie gush but tons of said switch to conipl the circuitto said pun-1p when said lever neclianism operated, said lever mechanism using adapted to close said valve an appreciabietime before said switch is operated to maize said circuit.

-7. in a liquid measuring agape-rams hill? ing a measuiinp; vessel, suction pine pump connected therewith, and a pu. tor having a circuit controlling an normally open valve-controlled air inlet; c

nection. the suction. pipe having a val operating mechal'iisin ciosi. and ope ing the motor con'tr l "Witch, and.

said meek vitcls. is claw yeti nism provided with agrip mg device in telescoping connmtwn a the stem oil. said air inlet valve 'wi'tn an mtcwening' spring. in testnnony vviier oi. hereon.

signature. 

